Taking profits is always a good deal. Pigs get fed. Hogs get eaten.
Hindsight is for unseasoned whiners. I have been there.
In regards to BVXV. Even if the European clinical trial is positive. It will still have a long ways to go. I have also been thinking that the results just might deliver a percentage instead of a positive 100%. For example if the trial proves that it worked on 60% of the trial subjects. Will the company continue? I would tend to think so.